Bearing for freely-oscillating centrifugal machines.



UNITED STATES Patented December 1, 1903.-

PATENT OFFICE.

LUDWIG HIR'I, OF GREVENBROIOH, GERMANY.

SPECIFICATION fo'nning part of Letters Patent No. 745,61 1, datedDecember 1, 1903.

Original application filed January 23. 1902, Serial No 90,848. Dividedand this application filed June 9, 1903. Serial No. 180,734. (No model.)

To all whom it may concern.-

Be it known that I, LUDWIG HIRT, a subject of the King of Prussia,German Emperor, and a resident of Grevenbroich, Kingdom of Prussia,German Empire, have invented certain new and useful Improvements inBearings for Freely-Oscillating Centrifugal Machines, of which thefollowing is a specification.

This invention refersto a construction of the bearing of centrifugalmachines in which the protecting-casing, the frame, and the ro-vtatingshaft, together with its drum, rest within a step-bearing or asocket by means of a pivot or universal joint and oscillate in it roundthe center of such pivot. Such a construction of a centrifugal machineis represented in the application for a United States patent filed by meon January 23, 1902, Serial No. 90,848, of which the present applicationis a division. The particular way of supporting this centrifugal machinein a socket and the arrangement of such a socket in the stories of thebuilding of a factory form the object of the present application.-

This invention consists especially in mounting the socket mentionedabove on a slide which is connected by screw-bolts and counter-plateswith the bottom or the iron girders of the-building to obtain an easyaccess to the hemispherical socket, the universal joint of the frame ofthe centrifugal machine, and the secondary parts of the lower bearing ofsuch machine without the necessity of its being taken apart. Afterremoval of the screw-bolts the slide may be moved sidewise for thepurpose indicated.

In the drawing annexed to the description a centrifugal machine isrepresented inside view, partlyin section, provided with the con theseparts mentioned above rest, with the exception of the buffer-frame, withthe hemispherical pivotf in a hemispherical recess of the socket g,formed in correspondence with the hemispherical part f, so that thesocket 9 supports the entire machine, which oscillates in such recessround the center line of the hemisphere f. This socket g rests on theslide 70, supported on the beams or girders Z,

which may forma part of the building. The socket, slide, and itssupporting part are rigidly connected together by the bolts m, theirnuts, and the counter-plate n.

The lower surface of the socket g is formed in correspondence with itsspherical interior surface in which the hemisphere g rests. A plate 0,formed correspondingly, rests against this surface. The plate and socketare provided with a recess or hole for the screw-bolt p, screwed in thehemisphere j and connected with the plate 0 by a nut, the hole in thesocket being of a greater diameter than that of the bolt p. Thereforeall oscillating movements of the machine and its hemispherical pivot fare transmitted to the plate 0, the main purpose of which consists incounteracting any tendency of the machine to move upward.

In this construction the lower part of the centrifugal machineas, forinstance, the

--step-bearing of theshaft, its bearing in the lower part of the frame,the-hemispherical pivot, and the socket-can easily and within a littletime be removed and inspected or replaced without the necessity oftaking apart the centrifugal machine. After supporting the frame of thecentrifugal machine the nuts of the bolts m are loosened and these boltsare removed in a downward direction with the counter-plate n. Hereafterthe slide it may be moved sidewise. After loosening the nuts of the boltp the counter-plate 0,

the socket g, and hereafter the hemispherical pivot f, connected withthe frame of the centrifugal machine and carrying the step-bearing 2"for the shaft, mayibe removed. In the same manner the lining of theshaft-bearing in the lower'part of the frame may be removed. These partsmay then be inspected, repaired, or replaced with new parts.

That I claim is 1. In a bearing for freely-oscillating centrifugalmachines, the combination with the frame, of a pivot for supporting saidframe, a hemispherical socket engaged by said pivot and provided with ahole in its center, and with a convex outer surface concentric with itsinner surface, a hollow plate in contact With such outer surface, andmeans for detachably connecting said plate with said pivot.

2; Abearingforacentrifugalmachine,comprising a convex pivot, a concavesocket engaged by said pivot and provided with a central opening, theouter surface of said socket being curved concentrically with its innersurface, a concave plate engaging said outer surface, means fordetachably connecting said plate with the pivot, and a slide forsupporting said socket.

3. A bearingfor a centrifugal machine,comprising a convex pivot, aconcave socket provided with a central opening and having its outersurface curved concentrically with its inner surface, a concave plateengaging said outer surface, means for detachably connecting said platewith the pivot, a slide for supporting said socket, a stationary supportfor said slide, a counter-plate engaging said stationary support andbolts for detachably connecting said counter-plate and slide with thestationary support.

4. An end bearing for spindles, comprising a sphericallyrounded memberat the end of the spindle, a centrally-perforated hemispherical socketadapted to receive said end member, the outer surface of said socketbeingcurved concentrically with its inner'surface, a concave plateengaging said outer surface and slidable thereon, and meansextendingthrough the perforation of the socket, for connecting saidconcave plate with said end member.

5. An end bearing for spindles, comprising a spherically rounded memberat the end of the spindle, a centrally-perforated hemispherical socketadapted to receive said end member, the outer surface of said socketbeing curved concentrically with its inner surface, a concave plateengaging said outer surface and slidable thereon, means extendingthrough the perforation of the socket, for connecting said concave platewith said end member, and a movable support for said socket.

6. An end bearing for spindles, comprising a spherically-rounded memberat the end of the spindle, a perforated socket adapted to receive saidend member, the outer surface of said socket being curved concentricallywith its inner surface, a concave plate engaging said outer surface andslidable thereon, means extending through the perforation of the socketfor connecting said concave plate with said end member, alaterally-movable slide which supports said socket, and means fornormally holding said slide stationary.

In testimony that I claim the foregoing as my invention I have signed myname, in presence of two Witnesses, this 7th day of May, 1903.

LUDWIG HIRT.

Witnesses:

PETER LIEBER, WILLIAM ESSENWEIN.

